Thank you very much, that’s really helpful.
I haven’t had any problems with Endnote or CWYW in over four years so I guessed it was because I was suddenly starting to move between different formats. I’ll stay unformatted until the last minute and hope for the best. This a 12,000 word document with a LOT of references so I really don’t want to lose the fieldcodes again as it’s a long job to replace them!
Thanks again.